Loom-temple thread cutter



J NORThROP LOOM TEMPLE THREAD CUTTER.

FILED MAR.17, 1921.

Mar. 27, 1923.

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Patented Mar. 27, 1923.

UNITED STATES JONAS NORTHROP, OF HOPEDALE, MASSACHUSETTS, ASSIGNOR TOHOPEDALE MANU- FACTURING COMPANY, OF MILFORD, M

CHUSETTS.

ASSACHUSETTS, A CORPORATION OF MASSA- LOOM-TEMPLE THREAD CUTTER.

Application filed March 17, 1921. Serial No. 453,029.

To all whom it may concern:

Be it known that I, JONAS NORTHROP, a citizen of the United States,residing at Hopedale, in the county of Worcester and State ofMassachusetts, have invented certain new and useful Improvements inLoom- Temple Thread Cutters; and I do hereby declare the following to bea full, clear, and exact description of the invention, such as willenable others skilled in the art to which it appertains to make and usethe same.

The present invent-ion relates to an improvement in loom temples. Inautomatic filling sup ly looms, the filling extending from the ellto thespent filling and from the filling supply mechanism to the fell shouldbe severed in order to prevent it from being accidentally woven into thecloth. The object of this invention is to produce a loom temple havingprovision for severing these threads with certainty and by means notliable to derangement. To the above end the present invention consistsin the loom temple hereinafter described and particularly defined in theclaims.

In the accompanying drawings F 1g. 1 1s a side elevation of a templeembodying the invention; Fig. 2 is a plan of the same, Fig. 3 is a sideelevation showing the parts in a different position from that shown in'Fig. 1, and Fig. 4 is a perspective detail view of the weft hooks andweft support-' ing fingers.

The temple rod 1 having a goose neck 2 supports at its end the templepod covered with the temple cap 4. A temple heel 5 is secured to thetemple rod in the usual manner. The temple rod 1 is supported in a rodguide 6, in turn secured to the temple support 7 by means of bolts inthe usual manner, The temple as thus far described is substantially thesame as that shown 1n Letters Patent No. 1,067,836, in which the detailsof construction are more fully described. The temple rod is slotted inadirection, at right angles to the axis of the temple roll to receivethe weft severin slide 21, provided with the slide heel 22 a apt/ed tobe engaged by the lay which is diagrammatically illustrated in brokenlines. The weft severing slide 21 is pressed rearward to its normalposition by the spring 23 supported on the stud 24 which is carried onthe goose neck 2 of the temple rod 1. The weft severingslide is providedat its extreme rear end with a plurality of integral rigidly supportedweft hooks 25. These hooks 25 have vertical front faces and curved rearfaces, as shown, so that the weft can slide under the hook easily butcannot easily be disengaged therefrom. Co-

operating with the Weft severing hooks of the slide is a weft support 26adapted to be secured by means of a screw to the temple rod. This weftsupport is provided with a plurality of depending fingers 31 againstwhich the weft'is pressed by the hooks of the weft severing slide whenthe weft is to be severed. The weft supporting fingers are approximatelythe thickness of the spaces between the hooks 25 so that when the weftsevering slide is pushed forward so to cause the hooks to press the weftagainst the weft supporting fingers 31 the weft is cut by the fingers orby being bent around them is broken. In case the fingers are somewhatthinner than the spaces between the hooks the weft will be bentalternately around the fingers of the weft support and the hooks of theweft severing slide thereby bending the weft in a sinuous line so as tocause a; longitudinal strain to be exerted upon the thread greater thanits strength to resist, so that the thread is thereby severed by thedevice. So far as the present invention is concerned it is'immaterialwhether the fingers so nicely fit the spaces between the hooks as to cutand sever the thread, or hooks which are separated far enough apart notto cut the thread and the thread is broken by being strained around thefingers and hooks. In either case particles of thread, or fragments ofstaple, are drawn between weftsupporting fingers of the weft support andaccumulate there. One feature of the present invention consists in thearrangement shown in Fig. 1, and on an enlarged scale in Fig. 4, bywhich the surface of the space at the roots of the fingers 31 which'isinclined from the top forwardly so that as particles of threads orfragments of staples are drawn by hooks into the spaces between thefingers the accumulation of the latter and the successive pressures ofwhether the fingers and 4 the hook thereon operate to force the ma-Another feature of the invention resides in the construction of the weftsevering slide 21 by virtue of which when the slide heel is struck bythe lay the slide rocks about an upwardl extended pivot formed as aprojectionupwardly from the angle of the heel and the body of the weftsevering slide. The result of this construction is that as the lay movesforwardly, pressing upon the heel 22, it rocks the weft severing slide21 about the plYOll 30 so that the weft hooks 25 swing downwardly andforwardly toward the thread and toward the ends of the weft severingfingers. This construction is clearly to be distinguished from thatillustrated in the patent to Draper and Stimpson, No. 585,465, datedJune 29, 1897, wherein the weft severing slide is shown as pivotallymounted in such a way as to rock upon the shoe 6 so that the weftsevering fingers move always rearwardly rather than forwardly as in thepresent case. In the present construction the tendency of the hooks isto move forwardly so as to engage and draw the threads toward thefingers, thereby decreasing the size of the space within which thethread is held in contra-distinction from allowing it to remain the sameor to increase as in the construction of said patent.

Furthermore, in the present construction the vertical height of the weftsupporting fingers is made greater than in prior constructions in orderthat the thread may be cut over a wider area of surface, therebyreducing the wear on any given part of the fingers and increasing thecertainty of the operation of the device, by increasing the size of thelocus of cutting.

Having thus described the invention what is claimed is:

1. A weft severing device consisting of a weft severing slide providedwith a heel and a weft support, said slide and heel having cooperatingfingers adapted to intermesh for severing the weft, the bottoms of thespaces between the fingers of the support being inclined forwardly anddownwardly,

and said slide being constructed and supported upon engagement of thelay with its heel to move its cutting portion downwardly and forwardlyso, as thereby to engage the thread to be severed by a motion in adirection toward the support and downwardly at the same time, so thataccumulating thread and staple fragments between the fingers of thesupport are forced downwardly and outwardly therefrom.

2. A weft severing device consisting of a weft severing slide providedwith a multiple finger weft engaging hookat its rear end, and a weftsupport provided? with a multiple finger support having the bottoms ofthe spaces between the fingers inclined forwardl and downwardly, saidslide being provlded with a pivot portion arranged above the weftengaging hooks of the slide so that when the heel is struck by the lay,the hooks swing downwardly about the pivot and forwardly to engage andsever the thread against the fingers of the support, such motion actingto force downwardly and outwardly from between the fingers of thesupport accumulating thread and staple fragments.

3. A weft severing device consisting of a weft severing slide providedwith a heel and a weft support, the bottom of the spaces between thefingers of the support being inclined forwardly and downwardly so thataccumulating thread and staple fragments are forced downwardly andoutwardly therefrom.

4. A weft severing device consisting of a weft severing slide and a weftsupport, the weft severing slide being provided with long downwardlyextending faced hooks and the weft support, being provided with longvertically positioned thread cutting fingers, the bottoms of the spacesbetween the fingers of the support being inclined forwardly anddownwardly so that accumulating thread and staple fragments are forceddownwardly and outwardly therefrom.

JONAS NORTHROP.

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